Patents by Inventor Frederick Dana Cazer

Frederick Dana Cazer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for making geminal bisphosphonates
    Patent number: 6562974
    Abstract: The present invention relates to a novel process for making geminal bisphosphonates. The process provides for bisphosphorylation using phosphorus trihalide, phosphorous acid as a reactant/solvent, and a base as an acid acceptor/solvent.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: May 13, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Frederick Dana Cazer, William Douglas Cramer, Dennis Michael Billings, Gregory Eugene Parry
  • Selective crystallization of 3-pyridyl-1-hydroxyethylidene-1, 1-bisphosphonic acid sodium as the hemipentahydrate or monohydrate
    Patent number: 6410520
    Abstract: The present invention discloses 3-pyridyl-1-hydroxyethylidene-1,1-bisphosphonic acid sodium hemipentahydrate and monohydrate, methods of preparing the hemipentahydrate or monohydrate through control of the nucleation temperature and rate of crystallization and pharmaceutical compositions containing one or both of the hydrate forms.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: June 25, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Frederick Dana Cazer, Gregory Eugene Parry, Dennis Michael Billings, Nancy Lee Redman-Furey
  • Selective crystallization of 3-pyridyl-1-hydroxyethylidene-1,1-bisphosphonic acid sodium as the hemipentahydrate or monohydrate
    Publication number: 20020002282
    Abstract: The present invention discloses 3-pyridyl-1-hydroxyethylidene-1,1-bisphosphonic acid sodium hemipentahydrate and monohydrate, methods of preparing the hemipentahydrate or monohydrate through control of the nucleation temperature and rate of crystallization and pharmaceutical compositions containing one or both of the hydrate forms.
    Type: Application
    Filed: January 29, 2001
    Publication date: January 3, 2002
    Inventors: Frederick Dana Cazer, Gregory Eugene Parry, Dennis Michael Billings, Nancy Lee Redman-Furey
  • Process for making geminal bisphosphonates
    Publication number: 20010041690
    Abstract: The present invention relates to a novel process for making geminal bisphosphonates. The process provides for bisphosphorylation using phosphorus trihalide, phosphorous acid as a reactant/solvent, and a base as an acid acceptor/solvent.
    Type: Application
    Filed: January 29, 2001
    Publication date: November 15, 2001
    Inventors: Frederick Dana Cazer, William Douglas Cramer, Dennis Michael Billings, Gregory Eugene Parry